Universe Sandbox

General Category => Everything Else => Topic started by: Magnetar on September 05, 2009, 02:14:31 PM

Title: Gravity's Brother: Electromagnetism
Post by: Magnetar on September 05, 2009, 02:14:31 PM

Hi.
Gravity is not the only fundamental force which rules in this universe.
One of the other fundamental forces you will recognize is Electromagnetism.
I stumbled upon some nice java based demonstrations of the Electrostatic
and Magnetostatic forces some months ago and I would like to share it with you:

Electromagnetic Waves (http://www.falstad.com/ripple/)
2D Electrostatic Field Lines (http://www.falstad.com/emstatic/)
3D Electrostatic Field with Particles (http://www.falstad.com/vector3de/)
3D Magnetostatic Field with Particles (http://www.falstad.com/vector3dm/)

There are actually also some more pretty interesting applets on this site.
I especially love the demonstration of the kinetic gas theory.
Anyways, here's the full page:

http://www.falstad.com/mathphysics.html

By the way:
The formulas for the Gravitational force and the Electrostatic force are pretty much similiar. The big difference however is that the Coulomb constant is much greater than the Gravity constant. And of course the formula for the Electrostatic force works with charges, instead of masses.

Title: Re: Simulations of Gravity's Little Brother: Electromagnetism
Post by: Magnetar on September 07, 2009, 11:38:21 AM

Oh c'mon boys, electromagnetism is so much fun too.   ::)

Title: Re: Gravity's Brother: Electromagnetism
Post by: atomic7732 on September 07, 2009, 01:17:51 PM

Maybe that's why no one posted yet!  ;)
I like it.

Btw, i found this one a year ago, and it is awesome!

Electrostatic Visualizations (http://ocw.mit.edu/ans7870/8/8.02T/f04/visualizations/electrostatics/36-electrostaticforce/36-esforce320.html)
Electrostatic Visualizations - 3D Particle Simulation (http://ocw.mit.edu/ans7870/8/8.02T/f04/visualizations/electrostatics/21-Molecules3d/Molecules3dFullScreen.htm) "i" to bring up key shortcuts
Electrostatic Visualizations - 2D Particle Simulation (http://ocw.mit.edu/ans7870/8/8.02T/f04/visualizations/electrostatics/20-Molecules2d/Dynamics2D.htm)
Electrostatic Visualizations - 2D suspension Bridge (http://ocw.mit.edu/ans7870/8/8.02T/f04/visualizations/electrostatics/25-SuspensionBridge/25-bridge320.html)


Magnetoshphere Simulations (http://www2.nict.go.jp/y/y223/simulation/realtime/movie.html)